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Finding the Fourth Proportional to 269,571.33, 404,357.04 and 127,430.91

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Solution

The fourth proportional to 269,571.33, 404,357.04 and 127,430.91 is: 191,146.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,571.33 : 404,357.04 = 127,430.91 : x
  2. Step 2: Convert to fraction form
    269,571.33/404,357.04 = 127,430.91/x
  3. Step 3: Cross multiply
    269,571.33x = 404,357.04 × 127,430.91
  4. Step 4: Simplify right side
    269,571.33x = 51,527,585,572.11
  5. Step 5: Solve for x
    x = 51,527,585,572.11/269,571.33
  6. Step 6: Final answer
    x = 191,146.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.